WO2018166184A1 - Led灯条及具有该led灯条的背光模组 - Google Patents

Led灯条及具有该led灯条的背光模组 Download PDF

Info

Publication number
WO2018166184A1
WO2018166184A1 PCT/CN2017/104736 CN2017104736W WO2018166184A1 WO 2018166184 A1 WO2018166184 A1 WO 2018166184A1 CN 2017104736 W CN2017104736 W CN 2017104736W WO 2018166184 A1 WO2018166184 A1 WO 2018166184A1
Authority
WO
WIPO (PCT)
Prior art keywords
led light
emitting elements
row
rows
height
Prior art date
Application number
PCT/CN2017/104736
Other languages
English (en)
French (fr)
Inventor
王睿
何红超
雷伟
朱江
郑亮亮
董秋兰
董玉玺
Original Assignee
京东方科技集团股份有限公司
合肥京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 合肥京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/768,898 priority Critical patent/US10969539B2/en
Publication of WO2018166184A1 publication Critical patent/WO2018166184A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like

Definitions

  • the present disclosure relates to an LED device, and in particular to an LED light bar and a backlight module having the same.
  • the design trend of LCD devices is to be bright and thin, but the thinness and high brightness of existing LCD devices are in conflict with design.
  • the thin and light design of the LCD device has limited space and cannot provide space for setting more LED light-emitting elements, and the high-brightness design of the LCD device requires more LED light-emitting elements to provide sufficient brightness.
  • a main object of the present disclosure is to provide an LED light bar having a large number of LED light-emitting elements.
  • Another main object of the present disclosure is to provide a backlight module that is light in structure and high in brightness.
  • an LED light bar including a circuit board, wherein the circuit board has a board body and a support structure disposed on a surface of the board body, and the support structure is provided with a plurality of An LED light-emitting element, wherein the plurality of LED light-emitting elements are arranged in a plurality of rows and both face a first direction parallel to the plate body, and each row of the LED light-emitting elements
  • the arrangement direction of the pieces is a second direction parallel to the plate body and perpendicular to the first direction, and projections of the LED light emitting elements on a plane parallel to the second direction and perpendicular to the first direction are mutually Staggered.
  • the height of the row of the LED light emitting elements in the first direction is higher than that in the first direction.
  • the height of the front row of the LED light-emitting elements is higher than that in the first direction.
  • the support structure includes a plurality of supports, and the plurality of the support members are disposed on the plate body and distributed in a plurality of rows, and each of the support members is provided with at least one of the
  • the LED light-emitting element has a height of the row of the support members relatively rearward in the first direction higher than a height of the adjacent row of the support members in the first direction, the higher row
  • the height of the LED lighting elements disposed on the support is higher than the height of the adjacent lower row of the supports.
  • each of the supports of each row is evenly spaced in the second direction.
  • the support structure is stepped and formed with a plurality of arrangement faces perpendicular to the bottom plate and perpendicular to the first direction, and each of the arrangement faces is provided with at least one
  • the LED light-emitting elements are arranged such that the height of the arrangement surface that is relatively rearward in the first direction is higher than the height of the adjacent one of the arrangement surfaces of the adjacent ones in the first direction.
  • each of the LED light emitting elements on each of the arrangement faces is evenly spaced in the second direction.
  • a backlight module includes a light guide plate and the LED light bar disposed on a light incident side of the light guide plate, wherein a light incident side of the light guide plate corresponds to The plurality of rows of the LED light-emitting elements of the LED light strip.
  • the light incident side of the light guide plate is formed with a plurality of light guide surfaces, and the plurality of light guide surfaces are respectively correspondingly coupled to the plurality of rows of the LED light emitting elements.
  • the LED light emitting elements are arranged in two rows, the height of the row of the LED light emitting elements relatively backward in the first direction is higher than the row in the first direction. a height of the LED light emitting element; wherein The light-incident side of the light guide plate is provided with a stepped slot, and two light guiding surfaces are formed, and the two light guiding surfaces are respectively matched to the two rows of the LED light-emitting elements.
  • a reflective sheet is disposed between the two light guiding surfaces, and the reflective sheet is located at the top of the slotted slot.
  • 1 is a side view of a conventional LED module
  • FIG. 2 is a top plan view of the LED light bar of the LED module shown in FIG. 1;
  • FIG. 3 is a schematic structural view of a support structure of the LED module shown in FIG. 1 and an LED light-emitting element;
  • FIG. 4 is a top plan view of an LED light bar, according to an exemplary embodiment
  • Figure 5 is a schematic view showing the structure of the first support member and the LED light-emitting element of the LED light bar shown in Figure 4;
  • FIG. 6 is a schematic structural view of a second support member and an LED light-emitting element of the LED light bar shown in FIG. 4;
  • FIG. 7 is a schematic structural diagram of a backlight module according to an exemplary embodiment.
  • FIGS. 1 through 3 show a side view of a conventional LED module 100.
  • FIG. 2 shows a top view of its LED strip
  • FIG. 3 shows a schematic view of its support structure 110 and LED illumination element 111.
  • the support structures 110 are disposed on the circuit board 120 at intervals and in a row.
  • the light incident side of the light guide plate 130 corresponds to the LED light emitting element 111 disposed on the support structure 110, and the LED light strip Cooperate.
  • the type and number of the support structure 110 and the LED light-emitting element 111 are limited, so that it is difficult to achieve the effect of improving the brightness on the basis of satisfying the thinness and lightness. Furthermore, based on the traces on the LED strips, the number of LED light-emitting elements 111 should not be too large, and the number of LED light-emitting elements is small, which is likely to cause problems of HOT SPOT, and the AP value is a bottleneck for improving brightness.
  • FIG 4 a top plan view of an LED light strip 200 that is capable of embodying the principles of the present disclosure is representatively shown in Figure 4.
  • the LED light bar 200 proposed by the present disclosure is exemplified by a backlight module, and further, a backlight module having an LED light bar 200 and a light guide plate 300 is taken as an example.
  • a backlight module having an LED light bar 200 and a light guide plate 300 is taken as an example.
  • the LED light bar 200 proposed by the present disclosure includes a circuit board.
  • a schematic structural view of the first support member 210 and the LED light-emitting element 212 of the LED light bar 200 is representatively shown in FIG. 5; the LED light bar is representatively shown in FIG. 6 .
  • the circuit board mainly comprises a plate body 230 and a support structure, and the support structure comprises a plurality of support members.
  • the plate body 230 is substantially in the form of a strip-shaped flat plate, and the manner in which the plate body is disposed is not limited to being horizontal, vertical or other manners, which is described here.
  • the circuit board may be an existing flexible circuit board, and the board 230 is a wiring area of the flexible circuit board, and the circuit board may also be other suitable for the LED light bar 200. Road board.
  • the shape of the plate 230 is not limited to a strip shape, and can be flexibly adjusted according to the use requirements of the LED light bar 200.
  • a plurality of support members are disposed on one surface of the plate body 230 , and the plurality of support members are distributed in two rows (the rows are parallel to the plate body).
  • a second direction F2 is arranged to extend), and each row of supports is spaced apart from each other.
  • a first direction F1 parallel to the plate body 230 is defined (the first direction F1 is preferably perpendicular to the second direction F2, which may also be understood as the light-emitting surface illumination direction of the LED light-emitting element), and is defined in the first
  • a row of support members in the direction F1 is a first row
  • a row of supports in the first direction F1 is a second row.
  • the support members defining the first row are the first support members 210
  • the support members of the second row are the second support members 220.
  • the plurality of first support members 210 and the plurality of second support members 220 are offset from each other.
  • the plurality of supports of each row may preferably be arranged in a uniform interval, and is not limited thereto.
  • each of the first support members 210 is provided with an LED light-emitting element 212 , and the LED light-emitting elements 212 are disposed at a position of the first support member 210 facing the first direction F1 .
  • each of the second support members 220 is provided with an LED light-emitting element 222, and the LED light-emitting elements 222 are disposed at a position of the second support member 220 facing the first direction F1. That is, the LED light-emitting elements disposed on the rows of supports are all oriented in the first direction.
  • the height of the second support member 220 is higher than the height of the first support member 210, so that the LED light-emitting element 222 of the second support member 220 can be disposed at a position higher than the first support member 210, so as to avoid the rear row.
  • the LED lighting element 222 is blocked by the first support 210 of the front row.
  • the first support member 210 may adopt an existing circuit board structure or the like, and the second support member 220 may be opposite to the first support member on the basis of the existing structure. 210 increases the height, but not limited to this.
  • the LED light-emitting elements 212 of the first support members 210 and the LED light-emitting elements 222 of the second support members 220 can be shifted from each other without being supported by the support members.
  • the increase in the number of rows of LED light-emitting elements affects the luminous intensity and effect of the LED light bar 200.
  • the arrangement of the support structure is not limited to two rows of supports, but may also be multiple rows of supports.
  • the plurality of support members of the LED light bar 200 may be distributed in a plurality of rows, and the LED light-emitting elements of the respective support members of the respective rows are staggered from each other by designing the arrangement of the rows of the support members.
  • the height of the LED lighting elements of the row of supports in the first direction F1 is higher than the height of the adjacent row of supports in the first direction F1.
  • the LED light-emitting elements of the rows of supports are projected on a plane parallel to the second direction F2 and perpendicular to the first direction F1, and the rows of LED light-emitting elements are staggered from each other in the height direction of the opposite plate 230.
  • LED light strip 200 illustrated in the figures and described in this specification is only one example of many of the LED light strips 200 that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are in no way limited to any detail of the LED light strip 200 shown in the figures or described in this specification or any component of the LED light strip 200.
  • the height of the LED light-emitting elements of the two rows of supports may be disregarded, but two rows of supports may be The pieces are staggered with each other such that the LED light-emitting elements are offset from each other in a second direction F2 parallel to the plate body 230 and perpendicular to the first direction F1. Accordingly, when the support members are arranged in a plurality of rows, if the heights of the LED light-emitting elements of the rows of support members are not considered, the support members of the rows are staggered to each other to ensure mutual misalignment, thereby achieving the purpose of improving the luminous intensity and effect. .
  • the heights of the LED light-emitting elements of the support members of the partial rows may be the same and different from the heights of the LED light-emitting elements of the support members of the other partial rows.
  • the partial rows of LED light-emitting elements having the same height they can be staggered by means of staggered arrangement.
  • the heights can be shifted according to the difference in height, and of course, they can be arranged in a staggered manner. The way is not limited to this.
  • each set of first support members and one corresponding to each other may be The second support is designed as a stepped structure in one piece. That is, in the present embodiment, the support structure includes a plurality of stepped structures arranged at intervals in the second direction.
  • each stepped structure comprises a plurality of arrangement surfaces (the arrangement surface is a façade of the step structure when the plate body is defined as a horizontal reference surface, and the arrangement surface is two, the step structure is two steps, and the arrangement surface is multiple
  • the step structure is a multi-step step, and each of the arrangement surfaces is provided with an LED light-emitting element.
  • a plurality of LED light-emitting elements are arranged in a plurality of rows, and the height of the relatively rearward arrangement surface in the first direction is higher than the height of the relatively front arrangement surface, that is, the rear row of LED light-emitting elements.
  • the height is higher than the height of the front row of LED light-emitting elements, so as to achieve the effect that the LED light-emitting elements are staggered from each other to ensure the luminous intensity.
  • the support structure is a stepped structure of an integral form, and it can also be understood that the stepped structures in the second embodiment are connected together in the second direction, and are formed in the second direction.
  • the support structure is formed with a plurality of arrangement faces that are perpendicular to the bottom plate and extend perpendicular to the first direction and extend in the second direction.
  • Each of the arrangement faces is provided with LED light-emitting elements arranged in a row, and the arrangement direction of the rows on the arrangement surface is parallel to the second direction.
  • the height of the relatively rearward arrangement surface in the first direction is higher than the height of the relatively front arrangement surface, thereby achieving the effect that the rows of LED light-emitting elements are staggered to each other to ensure luminous intensity.
  • the support structure adopts the above-described integral structure, the process of the present disclosure is simplified, the manufacturing cost is reduced, and the production efficiency is improved.
  • the present disclosure is to provide a plurality of rows of LED light emitting elements on a support structure, and design each LED light emitting element to be parallel to the second direction
  • the projections on the plane perpendicular to the first direction are staggered from each other, so that the occlusion phenomenon that may occur when the plurality of rows of LED illuminating elements are disposed is avoided on the basis of satisfying the requirement of structural thinning, and the illuminating brightness is significantly improved.
  • the backlight module mainly includes an LED light bar 200 and a light guide plate 300.
  • the LED light bar 200 is selected from the LED light bar 200 of the present disclosure.
  • the light guide plate 300 is disposed on a surface of the circuit board body 230 of the LED light bar 200 and provided with a support structure, and the light guide plate 300 has a light incident side 310. Two light guiding surfaces are formed on the light incident side, and the two light guiding surfaces are respectively fitted to the LED light emitting elements of the two rows of supports.
  • the light incident side 310 of the light guide plate 300 is formed with a first guide.
  • the light guide surface 311 and the second light guide surface 312, and the first light guide surface 311 corresponds to the LED light emitting element 212 disposed on the first support member 210, and the second light guide surface 312 corresponds to the LED disposed on the second support member 220.
  • a stepped shape may be formed on the light incident side 310 of the light guide plate 300.
  • the slot 313 is defined in a lower portion of the light incident side 310 and has a slot top and a slot sidewall.
  • the slot sidewall forms a first light guiding surface 311 corresponding to the LED light emitting component 212 disposed on the first support 210.
  • the sidewall of the upper portion of the light incident side 310 forms a second light guiding surface 312 to correspond to the LED light emitting element 222 disposed on the second support member 220.
  • a reflective sheet 314 may be disposed between the first light guiding surface 311 and the second light guiding surface 312 . That is, the reflection sheet 314 is located at the top of the groove of the above-described slit 313.
  • the light guide plate when the support structure is arranged in a plurality of rows (two rows or more) of support members, in order to match the light guide plate with the plurality of rows of support members, the light guide plate may be slotted on the light side.
  • the structure is further optimized. For example, when the heights of the rows of the support members are different, the above-mentioned slits on the light-incident side of the light guide plate can be designed as a multi-stepped structure, thereby forming a plurality of guides respectively corresponding to the LED light-emitting elements provided on the rows of support members. Glossy.
  • the light-incident side of the light guide plate can be designed like a zigzag structure, so as to form corresponding to each LED light-emitting element disposed on each row of support members.
  • a plurality of light guiding surfaces, and the light guiding surfaces are at the same height with respect to the plane of the plate body 230.
  • the present disclosure provides an LED light bar and a backlight module having the LED light bar, by disposing a plurality of rows of LED light-emitting elements that are staggered from each other on the LED light bar, and The rows of LED light-emitting elements are designed in a highly different and/or staggered structure or arrangement, which can significantly increase the brightness on the basis of meeting the requirements of lightness and thinness of the structure.
  • the backlight module proposed by the present disclosure realizes the mutual matching of the remaining LED light bars by designing the light guide plate, thereby improving the brightness of the backlight module and effectively improving the HOT SPOT problem.
  • Exemplary embodiments of the LED light bar and the backlight module having the LED light bar of the present disclosure are described and/or illustrated in detail above.
  • embodiments of the present disclosure are not limited to the specific embodiments described herein, but rather, the components and/or steps of each embodiment can be used independently and separately from the other components and/or steps described herein.
  • Each component and/or each step of an embodiment may also be used in combination with other components and/or steps of other embodiments.
  • the terms "a”, “an”, “the”, “the”, etc. are used to indicate the presence of one or more elements/components/etc.
  • the present disclosure provides an LED light bar and a backlight module having the same, by arranging a plurality of rows of LED light-emitting elements on the LED light bar, and designing the rows of LED light-emitting elements to have different heights and/or mutually staggered structures. Or the layout form can significantly improve the brightness on the basis of meeting the requirements of structural thinning.
  • the backlight module proposed by the present disclosure realizes the mutual matching with the LED light bar by designing the light guide plate, thereby improving the brightness of the backlight module and effectively improving the HOT SPOT problem.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

一种LED灯条（200）及具有LED灯条（200）的背光模组，LED灯条（200）包括电路板（120），电路板（120）具有板体（230）和设于板体（230）的一表面的支撑结构（110），支撑结构（110）上设有多个LED发光元件（212），并呈多排布置且均朝向平行于板体（230）的第一方向（F1），每排LED发光元件（212）的排列方向均为平行于板体（230）且垂直于第一方向（F1）的第二方向（F2），各LED发光元件（212）在平行于第二方向（F2）且垂直于第一方向（F1）的平面上的投影相互错开。

Description

LED灯条及具有该LED灯条的背光模组
交叉引用
本申请要求于2017年3月13日提交的申请号为201710146587.0的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及LED装置，具体而言，涉及一种LED灯条及具有该LED灯条的背光模组。
背景技术
LCD装置的设计趋势为高亮轻薄化，然而现有LCD装置的轻薄化与高亮化在设计上存在冲突。例如，轻薄化设计的LCD装置的空间有限，无法提供设置更多LED发光元件的空间，而高亮化设计的LCD装置需要设置更多的LED发光元件来提供足够的亮度。
应当注意，提供在上述背景部分中公开的信息仅用于更好地理解本公开的背景，并且因此可以包含未形成那些本领域技术人员已知的现有技术的信息。
发明内容
本公开的一个主要目的在于提供一种LED发光元件数量较多的LED灯条。
本公开的另一个主要目的在于提供一种结构轻薄且亮度较高的背光模组。
为实现上述目的，本公开采用如下技术方案：
根据本公开的一个方面，提供一种LED灯条，包括电路板，其中，所述电路板具有板体和设于所述板体的一表面的支撑结构，所述支撑结构上设有多个LED发光元件，多个所述LED发光元件呈多排布置且均朝向平行于所述板体的一第一方向，每排所述LED发光元 件的排列方向均为平行于所述板体且垂直于所述第一方向的一第二方向，各所述LED发光元件在平行于第二方向且垂直于第一方向的平面上的投影相互错开。
根据本公开的其中一个实施方式，在各排所述LED发光元件的相邻两排中，在第一方向上相对靠后的一排所述LED发光元件的高度高于在第一方向上相对靠前的一排所述LED发光元件的高度。
根据本公开的其中一个实施方式，所述支撑结构包括多个支撑件，多个所述支撑件设于所述板体且呈多排分布，每个所述支撑件上设有至少一个所述LED发光元件，在第一方向上相对靠后的一排所述支撑件的高度高于在第一方向上相对靠前的相邻一排所述支撑件的高度，较高的一排所述支撑件上设置的所述LED发光元件的高度高于相邻的较低的一排所述支撑件的高度。
根据本公开的其中一个实施方式，每一排的各所述支撑件在第二方向上间隔均匀。
根据本公开的其中一个实施方式，所述支撑结构呈阶梯状，且形成有多个垂直于所述底板且垂直于所述第一方向的配置面，每个所述配置面上设有至少一排所述LED发光元件，在第一方向上相对靠后的所述配置面的高度高于在第一方向上相对靠前的相邻一排所述配置面的高度。
根据本公开的其中一个实施方式，每一所述配置面上的各所述LED发光元件在第二方向上间隔均匀。
根据本公开的另一个方面，提供一种背光模组，其包括导光板和和设于所述导光板的入光侧的所述的LED灯条，其中，所述导光板的入光侧对应于所述LED灯条的多排所述LED发光元件。
根据本公开的其中一个实施方式，所述导光板的所述入光侧形成有多个导光面，多个所述导光面分别对应配合于多排所述LED发光元件。
根据本公开的其中一个实施方式，所述LED发光元件呈两排布置，在第一方向上相对靠后的一排所述LED发光元件的高度高于在第一方向上相对靠前的一排所述LED发光元件的高度；其中，所述 导光板的所述入光侧开设有台阶状的开槽，并形成有两个导光面，两个所述导光面分别对应配合于两排所述LED发光元件。
根据本公开的其中一个实施方式，两个所述导光面之间设有反射片，且所述反射片位于所述开槽的槽顶。
应当理解，前面的一般描述和以下详细描述都仅是示例性和说明性的，而不是用于限制本公开。
本节提供本公开中描述的技术的各种实现或示例的概述，并不是所公开技术的全部范围或所有特征的全面公开。
附图说明
通过结合附图考虑以下对本公开的优选实施方式的详细说明，本公开的各种目标、特征和优点将变得更加显而易见。附图仅为本公开的示范性图解，并非一定是按比例绘制。在附图中，同样的附图标记始终表示相同或类似的部件。其中：
图1是一种现有LED模组的侧视图；
图2是图1所示的LED模组的LED灯条的俯视图；
图3是图1所示的LED模组的支撑结构和LED发光元件的结构示意图；
图4是根据一示例性实施方式示出的一种LED灯条的俯视图；
图5是图4所示的LED灯条的第一支撑件和LED发光元件的结构示意图；
图6是图4所示的LED灯条的第二支撑件和LED发光元件的结构示意图；
图7是根据一示例性实施方式示出的一种背光模组的结构示意图。
其中，附图标记说明如下：
100.LED模组；
110.支撑结构；
111.LED发光元件；
120.电路板；
130.导光板；
200.LED灯条；
210.第一支撑件；
212.LED发光元件；
220.第二支撑件；
222.LED发光元件；
230.板体；
300.导光板；
310.入光侧；
311.第一导光面；
312.第二导光面；
313.开槽；
314.反射片；
F1.第一方向；
F2.第二方向。
具体实施方式
体现本公开特征与优点的典型实施例将在以下的说明中详细叙述。应理解的是本公开能够在不同的实施例上具有各种的变化，其皆不脱离本公开的范围，且其中的说明及附图在本质上是作说明之用，而非用以限制本公开。
在对本公开的不同示例性实施方式的下面描述中，参照附图进行，所述附图形成本公开的一部分，并且其中以示例方式显示了可实现本公开的多个方面的不同示例性结构、系统和步骤。应理解，可以使用部件、结构、示例性装置、系统和步骤的其他特定方案，并且可在不偏离本公开范围的情况下进行结构和功能性修改。而且，虽然本说明书中可使用术语“之间”、“侧”等来描述本公开的不同示例性特征和元件，但是这些术语用于本文中仅出于方便，例如根据附图中所述的示例的方向。本说明书中的任何内容都不应理解为需要结构的特定三维方向才落入本公开的范围内。
下面参照图1至图3描述根据本发明一个对比例的LED灯条的示例性实施例，如图1至图3所示，图1示出了一种现有LED模组100的侧视图，图2示出了其LED灯条的俯视图，图3示出了其支撑结构110和LED发光元件111的结构示意图。在该LED模组100中，各支撑结构110间隔且呈一排地设于电路板120上，导光板130的入光侧对应于支撑结构110上设置的LED发光元件111，而与LED灯条配合。由于结构空间的限制，支撑结构110与LED发光元件111的型号和数量会受到限制，因此难以在满足轻薄化的基础上达到提升亮度的效果。再者，基于LED灯条上的走线，LED发光元件111的数量亦不能太多，LED发光元件数量少则容易引起HOT SPOT的问题，AP值是提升亮度的瓶颈。
LED灯条实施方式一
参阅图4，图4中代表性地示出了能够体现本公开的原理的LED灯条200的俯视图。在该示例性实施方式中，本公开提出的LED灯条200是以背光模组为例，进一步地，是以具有LED灯条200和导光板300的背光模组为例进行说明的。本领域技术人员容易理解的是，为将该LED灯条200应用于其他装置，而对下述的具体实施方式做出多种改型、添加、替代、删除或其他变化，这些变化仍在本公开提出的LED灯条200的原理的范围内。
如图4所示，在本实施方式中，本公开提出的LED灯条200包括电路板。配合参阅图5至图7，图5中代表性地示出了该LED灯条200的第一支撑件210和LED发光元件212的结构示意图；图6中代表性地示出了该LED灯条200的第二支撑件220和LED发光元件222的结构示意图。以下结合上述附图，对本公开提出的LED灯条200的各主要组成部分进行详细说明。
如图4至图6所示，在本实施方式中，电路板主要包括板体230和支撑结构，支撑结构包括多个支撑件。其中，板体230大致呈条形平板状，且板体的设置方式不限于为水平、竖直或其他方式，特此说明。具体而言，电路板可以为现有的柔性电路板，而板体230即为柔性电路板的布线区域，电路板亦可为其他适用于LED灯条200的电 路板。在其他实施方式在，板体230的形状并不以条形为限，可根据LED灯条200的使用需求灵活调整。
如图4至图6所示，在本实施方式中，多个支撑件均设置在板体230的一表面上，多个支撑件呈两排分布(所述的排是在平行于板体的一第二方向F2上排列延伸)，且每排支撑件相互间隔设置。为了便于描述，定义平行于板体230的一第一方向F1(该第一方向F1优选为垂直于第二方向F2，亦可理解为LED发光元件的发光面发光方向)，并定义在第一方向F1上相对靠前的一排支撑件为第一排，在第一方向F1上相对靠后的一排支撑件为第二排。并且，定义第一排的支撑件为第一支撑件210，第二排的支撑件为第二支撑件220。其中，多个第一支撑件210与多个第二支撑件220相互错开分布。进一步地，每一排的多个支撑件可以优选为间隔均匀的布置方式，并不以此为限。
如图4至图6所示，在本实施方式中，每个第一支撑件210上设置有LED发光元件212，且LED发光元件212设置在第一支撑件210的朝向第一方向F1的位置。类似地，如图7所示，在本实施方式中，每个第二支撑件220上设置有LED发光元件222，且LED发光元件222设置在第二支撑件220的朝向第一方向F1的位置，即各排支撑件上设置的LED发光元件均朝向第一方向。其中，第二支撑件220的高度高于第一支撑件210的高度，以使第二支撑件220的LED发光元件222的能够设置在高于第一支撑件210的位置上，以免后排的LED发光元件222被前排的第一支撑件210遮挡。另外，如图5所示，在本实施方式中，第一支撑件210可采用现有的电路板结构或类似的设计，第二支撑件220可在现有结构的基础上相对第一支撑件210增加高度，但并不以此为限。
通过本公开的上述设计，能够在支撑结构具有两排支撑件时，使各第一支撑件210的LED发光元件212与各第二支撑件220的LED发光元件222相互错开，不会因支撑件和LED发光元件排数的增加而影响LED灯条200的发光强度和效果。在本公开的其他实施方式中，支撑结构的布置方式不限于两排支撑件，而亦可为多排支撑件。 即，该LED灯条200的多个支撑件可呈多排分布，并通过对各排支撑件的布置方式的设计，使各排的各支撑件的LED发光元件相互错开。例如，在各排支撑件中，在第一方向F1上相对靠后的一排支撑件的LED发光元件的高度高于相邻的在第一方向F1上相对靠前的的一排支撑件高度。通过上述设计，将各排支撑件的LED发光元件投影在平行于第二方向F2且垂直于第一方向F1的一平面上，不同排的LED发光元件在相对板体230的高度方向上相互错开，保证多排LED发光元件的充分发光。在此应注意，附图中示出而且在本说明书中描述的LED灯条200仅仅是能够采用本公开原理的许多种LED灯条200中的一个示例。应当清楚地理解，本公开的原理绝非仅限于附图中示出或本说明书中描述的LED灯条200的任何细节或LED灯条200的任何部件。
举例来说，基于本公开的原理，在另一示例性实施方式中，当支撑结构呈两排布置的支撑件时，可不考虑两排支撑件的LED发光元件的高度，而是将两排支撑件相互交错分布，而使各LED发光元件在平行于板体230且垂直于第一方向F1的一第二方向F2上相互错开。据此，当支撑件呈多排布置时，如不考虑各排支撑件的LED发光元件的高度，则各排的各支撑件相互交错分布，以保证相互错开，达到提升发光强度和效果的目的。
再者，当支撑件呈多排布置时，亦可有部分排的支撑件的LED发光元件的高度相同，且与另一部分排的支撑件的LED发光元件的高度不同。对于LED发光元件高度相同的部分排，可利用相互交错布置的方式保证相互错开，对于LED发光元件高度不同的部分排，则基于高度的差异即可实现相互错开，当然亦可结合相互交错布置的方式，并不以此为限。
LED灯条实施方式二
结合上述LED灯条实施方式一的设计构思，以下对本公开提出的LED灯条的另一示例性实施方式进行说明。
在本实施方式中，基于前排的各第一支撑件与后排的各第二支撑件一一对应的设计，可将每一组相互对应的一个第一支撑件和一个 第二支撑件设计为一体形式的台阶状结构。即，在本实施方式中，支撑结构是包括在第二方向上间隔排列的多个台阶状结构。其中，每个台阶状结构包括多个配置面(该配置面是以定义板体为水平参考面时台阶结构的立面，配置面为两个则台阶结构为两级台阶，配置面为多个则台阶结构为多级台阶)，且每个配置面上分别设有LED发光元件。据此，多个LED发光元件形成多排的布置形式，且在第一方向上相对靠后的配置面的高度高于相对靠前的配置面的高度，即靠后的一排LED发光元件的高度高于靠前的一排LED发光元件的高度，以达到各LED发光元件相互错开，保证发光强度的效果。
LED灯条实施方式三
结合上述各实施方式的设计构思，以下对本公开提出的LED灯条的又一示例性实施方式进行说明。
在本实施方式中，支撑结构为一整体形式的台阶状结构，亦可理解为将上述第二实施方式中的各台阶状结构在第二方向上连接在一起，而形成的在第二方向上延伸的台阶状的支撑结构。其中，该支撑结构形成有多个垂直于底板且垂直于第一方向并在第二方向上延伸的配置面。每个配置面上设有成排布置的LED发光元件，且该排在配置面上的布置方向平行于第二方向。基于台阶状结构的结构特点，在第一方向上相对靠后的配置面的高度高于相对靠前的配置面的高度，以此达到各排LED发光元件相互错开，保证发光强度的效果。另外，在本实施方式中，由于支撑结构采用上述整体式的结构，简化了本公开的制程，降低了制造成本，并有利于提高生产效率。
综合上述对本公开提出的LED灯条的几个示例性实施方式的说明，本公开是通过在支撑结构上设置多排布置的LED发光元件，并将各LED发光元件设计为在平行于第二方向且垂直于第一方向的平面上的投影相互错开，从而在满足结构轻薄化需求的基础上，避免设置多排LED发光元件时可能出现的遮挡现象，保证发光亮度的显著提升。
背光模组实施方式
参阅图7，图7中代表性地示出了能够体现本公开的原理的背光 模组的侧视图。在本实施方式中，该背光模组主要包括LED灯条200和导光板300。其中，LED灯条200选用本公开提出的LED灯条200，导光板300设置在LED灯条200的电路板板体230的设有支撑结构的表面，且导光板300具有入光侧310，该入光侧形成有两个导光面，这两个导光面分别配合于两排支撑件的LED发光元件。
如图7所示，在本实施方式中，由于LED灯条200的多个支撑件呈两排分布，为了实现与LED灯条200的配合，导光板300的入光侧310形成有第一导光面311和第二导光面312，且第一导光面311对应于第一支撑件210上设置的LED发光元件212，第二导光面312对应于第二支撑件220上设置的LED发光元件222。具体而言，在本实施方式中，为了在导光板300的入光侧310形成上述第一导光面311和第二导光面312，可在导光板300的入光侧310开设台阶状的开槽313。该开槽313开设在入光侧310的下部，并具有槽顶和槽侧壁，则该槽侧壁形成第一导光面311而对应于第一支撑件210上设置的的LED发光元件212，入光侧310上部的侧壁形成第二导光面312而对应于第二支撑件220上设置的的LED发光元件222。
进一步地，如图7所示，在本实施方式中，为了进一步避免光线的漏出，以进一步提升亮度，可在第一导光面311与第二导光面312之间设有反射片314，即该反射片314位于上述开槽313的槽顶。
另外，在本公开的其他实施方式中，当支撑结构呈多排(两排以上)支撑件布置时，为将导光板与多排支撑件配合，可将导光板入光侧开设的开槽的结构进一步优化。例如，当各排支撑件高度不同时，可将导光板入光侧的上述开槽设计为多级台阶状的结构，从而形成分别与各排支撑件上设置的LED发光元件对应的多个导光面。又如，当各排支撑件的高度相同且采用交错布置时，可将导光板的入光侧设计为类似锯齿状的结构，从而形成分别与各排支撑件上设置的各LED发光元件对应的多个导光面，且这些导光面相对于板体230的该平面处于同一高度。
综上所述，本公开提出一种LED灯条及具有该LED灯条的背光模组，通过在LED灯条上设置相互错开的多排LED发光元件，并将 各排LED发光元件设计为高度不同和/或相互错开的结构或布置形式，可以在满足结构轻薄化需求的基础上显著提升亮度。另外，本公开提出的背光模组，通过对导光板的设计来实现其余LED灯条的相互匹配，据此可以提升背光模组的亮度，且可有效改善HOT SPOT问题。
以上详细地描述和/或图示了本公开提出的LED灯条及具有该LED灯条的背光模组的示例性实施方式。但本公开的实施方式不限于这里所描述的特定实施方式，相反，每个实施方式的组成部分和/或步骤可与这里所描述的其它组成部分和/或步骤独立和分开使用。一个实施方式的每个组成部分和/或每个步骤也可与其它实施方式的其它组成部分和/或步骤结合使用。在介绍这里所描述和/或图示的要素/组成部分/等时，用语“一个”、“一”和“上述”等用以表示存在一个或多个要素/组成部分/等。术语“包含”、“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等。此外，权利要求书及说明书中的术语“第一”和“第二”等仅作为标记使用，不是对其对象的数字限制。
由上述技术方案可知，本公开提出的LED灯条及具有该LED灯条的背光模组的优点和积极效果在于：
本公开提出一种LED灯条及具有该LED灯条的背光模组，通过在LED灯条上设置多排LED发光元件，并将各排LED发光元件设计为高度不同和/或相互错开的结构或布置形式，可以在满足结构轻薄化需求的基础上显著提升亮度。另外，本公开提出的背光模组，通过对导光板的设计来实现其与LED灯条的相互匹配，据此可以提升背光模组的亮度，且可有效改善HOT SPOT问题。
虽然已根据不同的特定实施例对本公开提出的LED灯条及具有该LED灯条的背光模组进行了描述，但本领域技术人员将会认识到可在权利要求的精神和范围内对本公开的实施进行改动。

Claims (10)

  1. 一种LED灯条，包括电路板，所述电路板具有板体和设于所述板体一表面的支撑结构，所述支撑结构上设有多个LED发光元件，多个所述LED发光元件呈多排布置且均朝向平行于所述板体的一第一方向，每排所述LED发光元件的排列方向均为平行于所述板体且垂直于所述第一方向的一第二方向，各所述LED发光元件在平行于第二方向且垂直于第一方向的平面上的投影相互错开。
  2. 根据权利要求1所述的LED灯条，其中，在各排所述LED发光元件的相邻两排中，在第一方向上相对靠后的一排所述LED发光元件的高度高于在第一方向上相对靠前的一排所述LED发光元件的高度。
  3. 根据权利要求2所述的LED灯条，其中，所述支撑结构包括多个支撑件，多个所述支撑件设于所述板体且呈多排分布，每个所述支撑件上设有至少一个所述LED发光元件，在第一方向上相对靠后的一排所述支撑件的高度高于在第一方向上相对靠前的相邻一排所述支撑件的高度，较高的一排所述支撑件上设置的所述LED发光元件的高度高于相邻的较低的一排所述支撑件的高度。
  4. 根据权利要求3所述的LED灯条，其中，每一排的各所述支撑件在第二方向上间隔均匀。
  5. 根据权利要求2所述的LED灯条，其中，所述支撑结构呈阶梯状，且形成有多个垂直于所述底板且垂直于所述第一方向的配置面，每个所述配置面上设有至少一排所述LED发光元件，在第一方向上相对靠后的所述配置面的高度高于在第一方向上相对靠前的相邻一排所述配置面的高度。
  6. 根据权利要求5所述的LED灯条，其中，每一所述配置面上的各所述LED发光元件在第二方向上间隔均匀。
  7. 一种背光模组，包括导光板和和设于所述导光板的入光侧的LED灯条，其中，所述LED灯条为权利要求1～6任一项所述的LED灯条，所述导光板的入光侧对应于所述LED灯条的多排所述LED发光元件。
  8. 根据权利要求7所述的背光模组，其中，所述导光板的所述入光侧形成有多个导光面，多个所述导光面分别对应配合于多排所述LED发光元件。
  9. 根据权利要求7所述的背光模组，其中，所述LED发光元件呈两排布置，在第一方向上相对靠后的一排所述LED发光元件的高度高于在第一方向上相对靠前的一排所述LED发光元件的高度；其中，所述导光板的所述入光侧开设有台阶状的开槽，并形成有两个导光面，两个所述导光面分别对应配合于两排所述LED发光元件。
  10. 根据权利要求9所述的背光模组，其中，两个所述导光面之间设有反射片，且所述反射片位于所述开槽的槽顶。
PCT/CN2017/104736 2017-03-13 2017-09-30 Led灯条及具有该led灯条的背光模组 WO2018166184A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/768,898 US10969539B2 (en) 2017-03-13 2017-09-30 LED light strip and backlight module having the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710146587.0 2017-03-13
CN201710146587.0A CN106908994A (zh) 2017-03-13 2017-03-13 Led灯条及具有该led灯条的背光模组

Publications (1)

Publication Number Publication Date
WO2018166184A1 true WO2018166184A1 (zh) 2018-09-20

Family

ID=59187573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/104736 WO2018166184A1 (zh) 2017-03-13 2017-09-30 Led灯条及具有该led灯条的背光模组

Country Status (3)

Country Link
US (1) US10969539B2 (zh)
CN (1) CN106908994A (zh)
WO (1) WO2018166184A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106908994A (zh) * 2017-03-13 2017-06-30 合肥京东方光电科技有限公司 Led灯条及具有该led灯条的背光模组
CN110095867B (zh) * 2018-01-31 2021-01-22 京东方科技集团股份有限公司 显示装置及方法、平视显示系统、交通工具和存储介质
CN109613759B (zh) * 2019-02-20 2024-01-09 重庆惠科金扬科技有限公司 灯条、背光模组及显示装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000049332A1 (en) * 1999-02-16 2000-08-24 Tokheim Corporation Led backlighting apparatus for use in fuel dispensers
CN201269435Y (zh) * 2008-10-14 2009-07-08 许国永 一种led灯管
CN202001958U (zh) * 2011-03-28 2011-10-05 彩虹集团公司 一种led背光源装置
CN202327843U (zh) * 2011-11-08 2012-07-11 北京京东方光电科技有限公司 一种背光源及液晶显示器
CN202598330U (zh) * 2012-06-01 2012-12-12 京东方科技集团股份有限公司 侧入式背光模组和液晶显示装置
CN202791674U (zh) * 2012-09-21 2013-03-13 深圳市索佳光电实业有限公司 一种防止产生亮带的直下式led背光模组
CN205880450U (zh) * 2016-07-25 2017-01-11 Tcl海外电子（惠州）有限公司 Led灯条以及背光模组
CN106597745A (zh) * 2016-12-31 2017-04-26 盐城三鼎电子科技有限公司 一种用于液晶电视的背光源
CN106908994A (zh) * 2017-03-13 2017-06-30 合肥京东方光电科技有限公司 Led灯条及具有该led灯条的背光模组

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100394274C (zh) * 2003-06-04 2008-06-11 友达光电股份有限公司 发光二极管组合光源及背光模块
WO2007116556A1 (ja) * 2006-04-10 2007-10-18 Sharp Kabushiki Kaisha Ｌｅｄパッケージ並びにこれを備えた照明装置および液晶表示装置
JP5142499B2 (ja) * 2006-08-18 2013-02-13 株式会社ジャパンディスプレイイースト 液晶表示装置
US7847306B2 (en) * 2006-10-23 2010-12-07 Hong Kong Applied Science and Technology Research Insitute Company, Ltd. Light emitting diode device, method of fabrication and use thereof
CN201017141Y (zh) * 2006-12-18 2008-02-06 科桥电子股份有限公司 背光模块的光源装置
US20100182539A1 (en) * 2007-06-06 2010-07-22 Chiaki Ohyama Backlight unit and liquid crystal display
JP2009117206A (ja) * 2007-11-07 2009-05-28 Sony Corp 面光源装置及び画像表示装置
CN101477271A (zh) * 2008-01-04 2009-07-08 扬昕精密股份有限公司 侧光式背光模块
CN101846267B (zh) * 2009-03-25 2013-01-16 华映视讯（吴江）有限公司 背光模组
US7997784B2 (en) * 2009-05-12 2011-08-16 Global Lighting Technologies (Taiwan) Inc. Light guide apparatus of backlight module
US8426877B2 (en) * 2011-04-14 2013-04-23 Shenzhen China Star Optoelectronics Technology Co., Ltd. Backlight module
CN102865499B (zh) * 2011-07-07 2015-09-30 群康科技(深圳)有限公司 发光装置、背光模块及显示装置
CN103453383A (zh) * 2012-05-30 2013-12-18 鑫成科技(成都)有限公司 背光模组及液晶显示装置
CN103048727B (zh) * 2012-12-11 2014-12-24 京东方科技集团股份有限公司 导光板、背光源、液晶显示装置
CN103047610A (zh) * 2013-01-18 2013-04-17 昆山市诚泰电气股份有限公司 Led平面光源的反射结构
KR20150055319A (ko) * 2013-11-13 2015-05-21 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 포함하는 표시 장치
CN104216170A (zh) * 2014-08-20 2014-12-17 合肥京东方光电科技有限公司 一种背光源、显示面板和显示装置
CN105258027B (zh) * 2015-10-30 2018-11-27 北京京东方茶谷电子有限公司 背光模组及显示装置
CN205263341U (zh) * 2015-11-30 2016-05-25 深圳市明华光电有限公司 一种两侧封装双面发光光源的导光板
CN205842379U (zh) * 2016-07-20 2016-12-28 广州创维平面显示科技有限公司 一种侧入式背光模组及显示装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000049332A1 (en) * 1999-02-16 2000-08-24 Tokheim Corporation Led backlighting apparatus for use in fuel dispensers
CN201269435Y (zh) * 2008-10-14 2009-07-08 许国永 一种led灯管
CN202001958U (zh) * 2011-03-28 2011-10-05 彩虹集团公司 一种led背光源装置
CN202327843U (zh) * 2011-11-08 2012-07-11 北京京东方光电科技有限公司 一种背光源及液晶显示器
CN202598330U (zh) * 2012-06-01 2012-12-12 京东方科技集团股份有限公司 侧入式背光模组和液晶显示装置
CN202791674U (zh) * 2012-09-21 2013-03-13 深圳市索佳光电实业有限公司 一种防止产生亮带的直下式led背光模组
CN205880450U (zh) * 2016-07-25 2017-01-11 Tcl海外电子（惠州）有限公司 Led灯条以及背光模组
CN106597745A (zh) * 2016-12-31 2017-04-26 盐城三鼎电子科技有限公司 一种用于液晶电视的背光源
CN106908994A (zh) * 2017-03-13 2017-06-30 合肥京东方光电科技有限公司 Led灯条及具有该led灯条的背光模组

Also Published As

Publication number Publication date
US10969539B2 (en) 2021-04-06
US20200241196A1 (en) 2020-07-30
CN106908994A (zh) 2017-06-30

Similar Documents

Publication Publication Date Title
WO2018166184A1 (zh) Led灯条及具有该led灯条的背光模组
JP2012151086A (ja) バックライトユニット及びそれを用いたディスプレイ装置
US10121938B2 (en) Light source module
US10274663B2 (en) Light guide plate, backlight module and display device
EP3339728B1 (en) Led strip light for shelf signboards
WO2012060313A1 (ja) 照明装置および表示装置
WO2016141599A1 (zh) 一种背光模组及其灯条
US20150276148A1 (en) Reflective sheet, display device and reflective member
CN102705744A (zh) Led灯条及使用该灯条的侧入式背光模组
TWI578066B (zh) 背光模組及包含該背光模組的照明系統
CN202305872U (zh) 导光板与光源模块
US10095063B2 (en) Direct type backlight module and display device
US20150370003A1 (en) Light strip, backlight and display device
CN103104858A (zh) 背光模块及显示装置
US20120224107A1 (en) Backlight device, display device and television receiver
TW201728981A (zh) 光源模組
US20130135853A1 (en) Light-guiding element, light-emitting diode lamp tube and illumination lamp
CN210295705U (zh) 背光组件和显示设备
US20140177272A1 (en) Backlight module
CN105627201A (zh) 一种超薄led面板灯
CN202253037U (zh) Led平板灯
CN205278874U (zh) 一种侧入式背光的发光结构
US20140036535A1 (en) Backlight module and an led light bar thereof
CN214332581U (zh) 一种适用于点光源间距小的反射聚光机构
JP5564594B1 (ja) 照明システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17900884

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17900884

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 17.03.2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17900884

Country of ref document: EP

Kind code of ref document: A1